Accenting device.



J. H. PARNHAM 6r, J. HATTEIVIER.A AGGENTING DEVICE.

APPLIUATION FILED 11.111,2, 1911.

TME NRRIS PETERS CO. PHOTO-LITHO.. WASHINGTON. D. C.

UN l '.I ED STATES KrAfrinwr oFFio.

JOHN HENRY PARNHAM, OF NEW YORK,

NEW YORK, NEW JERSEY, ASSIGNORS YORK, N. Y., A CORPORATION 0F NEW YORK.

ACOENTING DEVICE.

T0 all @hom t may concern Be 1t known that we, JOHN HENRY PARN- HAM and JUsTUs HATTEMER, a subject of thel King of Great Britain and a citizen of the United States, respectively, residing at the city of New York, county of New York, and State of New York, and TvVest New York, county of Hudson, and State of New Jersey, respectively, have invented new and useful Improvements in Accenting Devices, of which the following is a speciiication.

This invention relates to player pianos and has for an object to provide mechanical pneumatically actuated means for operating ing such pneumatic in communication with the exhaust trunk by the passage of a music sheet over the trackerbar.

A further object of the invention is to provide a pneumatic adapted to actuate the manual of a player piano incommunication with a valve box which in turn communicates with the exhaust trunk of the player piano and with a valve controlled from the' trackerbar for establishingcommunication between the trunk andthe pneumatic and to maintain such communication open until a second valve is actuated from the trackerbar to release such rst mentioned valve and close the communication.

A further object of the invention is to provide improved means for throwing the apparatus out of operation as desired and also during the rewind of the music sheet.

With these and other objects in view the invention comprises certain novel constructions', combinations and arrangement of parts as will be hereinafter more fully described and claimed.

The drawing is a view largely diagrammatic of the device showing the valve box in section and the pneumatic for actuating Specification of Letters Patent.

Application led March 2', 1911.

Patented July 7, 1914. Serial No.`612,248.

the push b utton manual in side elevation and also showing a conventional accent box in section, it being understood that when used with a divided action the apparatus shown will be duplicated or triplicated to correspond to the number of divisions of the action.

A conventional trackerbar 1 is shown having the conventional and ordinary openings 2 for actuating the player pneumatics which is-similar in all respects to the ordinary trackerbar in common use. At the vextremities oi' the trackerbar two openings 3 and 4 are provided with which communicate respectively tubes 5 and 6.

An accent box shown as a whole at 7, which is of substantially the usual and ordinary type, such for instance as shown in Patent No. 853814, for controlling the application of high exhaust and low exhaust is provided communicating by means of a tube 8 with a push button manual 9 which is attached to a lever 10 and adapted to uncover a port 11 to control the expression box 7. The expression box 7, push button 9, lever 10 and port 11 are all of the usual and ordinary type either as here shown or in any of the usual and ordinary forms.

A pneumatic 12 is secured under the key bed 13 and provided with a finger 14 positioned to engage the rear end of the lever 10 so that when the pneumatic 12 is exhausted the rear end of the lever 10 is lifted which has the same effect as depressing the forward end of the lever by manipulating the push button 9,

To exhaust the pneumatic 12 such pneumatic is connected by means of a tube 15 with a valve housing shown as a whole at 16 and to which the tubes 5 and 6 also lead. The housing is provided with a chamber 25 through which passes a valve stem 17 carrying a valve 18 positioned to close a port 18 between the passage 19 and the chamber 25 which communicates with the tube 15. The passage 19 is in communication through the passage 20 with the` usual exhaust trunk of the player piano so tha-t the passage 19 is under exhaust. To actuate the valve stem 17 and open the valve 18 a pouch 21 is provided with the pocket 22 beneath it with which the tube 5 communicates so that when the hole 3 in the trackerbar is opened atmospheric pressure is admitted to the under side of the pouch 21 to raise the valve stem 17 and valve 18. Above the valve 18 a second valve 23 is so placed on the stem as to close the port or passage 24 which connec'tsl the chamberl 25 through the passage 26 with a chamber 27 to the atmosphere by way of a port 28. In the position shown in the ligure, the pneumatic 12 is therefore in communication with the atmosphere through. the port 28, chamber 27, passage 26, charnber 25 and port 24 so that such pneumatic is expanded. When, however', air is admitted through the opening 3 of the trackerbar beneath the pouch 21, the stem 17 is raised and the valve 23 closed and the valve 18 opened. This cuts 0H atmospheric pressure from the pneumatic and exhausts the air from the pneumatic through the port 18 4 opened by the valve 18. At the same time the air in a suction passage 29 and chamber 30vis exhausted so that the .pouch 31 is submitted to the exhaust with the under side of the pouch in communication with the atmosphere through the pocket 32 and passage 26. The application of exhaust to the pouch 31 holds the valve 18 open and thev valve 23 closed so that so long as the parts remain in this condition the pneumatic 12l remains deflated and the push button 9 depressed to open the port 11 and permit the introduction of air to the accent box 7. ItA

will be apparent then that when an opening in the music sheet passes over the opening 3 in the trackerbar the parts will be actuated as described to depress the manual 9 and to retain such manual 9 in such depressed condition until released. To relieve and release the parts air is admitted through the ports 4 by the passage of an opening in the music sheet through the tube 6 under the pouch 33 to raise the valve stem 34 to thereby open the valve 35 and close the Hvalve 36 and port 28. This performs the function of temporarily shutting off the atmospheric pressure from the passage 26 and the pocket under the pouch 31 and also to exhaust the air from such passages so that the tension on the under side of the pouch 31 is equalized with that on the upper side and the valves 18 and 23 fall by gravity. The raising of the valve stem 34, the opening of the valve 35 and closing of the valve 36 are only momentary as the opening in the music sheet passes over the hole 4 in thc trackerbar. The valve stem 34 then drops so that the parts are again returned to the position shown in the figure and are again in condition to be operated by the passage of an opening in the music sheet over the opening 3.

During the rewind of the sheet it is desirable to throw out of operation the apparatus and a valve 37 is therefore provided connected by a link to the rewind lever 38, said valve covering a port 39 in the pipe 40 which leads to a passage 41 beneath the pouch 42 carrying a valve 43 adapted to close a passage 44 when such valve is raised. It will be apparent then thatwhen the rewind level 38 is manipulated to open the port 39 the valve 43 will be raised by reason of the exhaust in the assage 19 to close the passage 44 and cut o the exhaust from the apparatus. Then the device is being operated by certain operators it is desirable at times to throw this apparatus out of operation so that the music may be accented manually by the operator. For this purpose a branch pipe 45 communicates with the pipe 40 having a port 46 closed by a valve 47 and operated in any approved manner as by the lever 48. When it is desirable therefore to accent the music manually the valve 47 is moved to o en position which as just above described t rows the apparatus out of operation.

At the opposite end of the trackerbar from the openings 3 and 4 are shown other similar openings with similar communicating tubes broken ofi', it being understood that such tubes lead to a similar device which in turn would communicate by Way of another manual button with a pipe 49 controlling the other side of the accent box 7. In other words if the device shown is employed to control the accent of the treble end of the action then the pipes leading from the opposite end of the trackerbar would lead to another manual push button for controlling the base end of the action. As such other device would be an exact duplicate of the device illustrated and as suchdevices might be multiplied as many times as it is found desirable to divide the trackerbar and action, it is not thought necessary to illustrate more than one of the devices.

le claim 1. The combination with an expression device, a manual for controlling it, and a pneumatic for actuating the manual; of a stem, two oppositely facing valves thereon, a housing having a valve chamber provided with ports alternately closed by the valves, one port communicating through a passage with the exhaust trunk and the other through an air passage with the atmosphere, an air inlet valve controlling the passage, a tube connecting the chamber with said pneumatic, a pouch on the stem beneath the exhaust passage, means for admitting air below said pouch from the tracker bar, and a second pouch on the stem above said air passage, the housing having a suction passage leading from said valve chamber to a point above the last named pouch.

2. The combination with an expression device, a manual for controlling it, and a penumatic for actuating the manual; of a stem, two oppositely facing valves thereon,

admitting air from the tracker bar for permitting the normal action of this pouch.

In testimony whereof We aiix our signa- 15 tures in presence of tWo Witnesses.

JOHN HENRY PARNHAM. Witnesses:

L. L. MORRILL, NANNIE MEEM.

JUSTUS HATTEMER. Witnesses:

L. L. MORRILL, Gr. M. KAUFMAN.

dopies of this patent may be obtained for tlve cents each, by addressing the Commissioner of Patents.

Washington. D. C 

